SWITCH 2BRRL TO 4BRRL

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Nov 16, 2012 | 04:50 PM

SIXTFOR

Thread Starter

Cross-Country

Joined: Sep 2012

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SWITCH 2BRRL TO 4BRRL

Please help with some adivce.

i want to switch a 2 brrl carb to a 4brrl carb. Is that easy? should it be done on a stock engine? should i get a new manifold first?

original 292 v8

Nov 16, 2012 | 05:19 PM

garbz2

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Joined: Nov 2000

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From: Glendale Arizona

Purchase a new aftermarket manifold. Stock units use differing patterns and are not always usable.

Use a 400 to 500 CFM carb with vac secondary's anything more is overkill.

Garbz

Nov 16, 2012 | 05:31 PM

Shadowrider123

Fleet Mechanic

Joined: Oct 2007

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Im thinking about that myself, I have the oem 4v manifold off my 390 parts truck, but I would want to run a 4100 and they seem hard to come by.

Nov 17, 2012 | 04:18 AM

NumberDummy

Ford Parts Specialist

Joined: Nov 2006

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From: Simi Valley, CA

Quote:

Originally Posted by Shadowrider123

Im thinking about that myself, I have the OEM

4V manifold off my 390 parts truck, but I would want to run a 4100 and they seem hard to come by.

What year is the parts truck? 390's not available in F100/350's until 1968.

1974/76 F100/350's were available with a 390 4V as an option, 4th digit of VIN is the engine code: M

4th digit of VIN: 1965: D = 352 2V / 1966/67: Y = 352 2V / 1968/76: Y = 360 2V (no 4V's available), H = 390 2V